offer to do sth volunteer one's help volunteer one's services do charity work
offer to do sth
献出生命用英文怎么说
献县用英文怎么说
献媚用英文怎么说
献媚讨好用英文怎么说
献宝用英文怎么说
英语词典收录了最新的汉英词典和英汉词典，总共有200多万个词条，词库仍在不断更新中。
